State-correlation matrix of the product pair from F + CD4 → DF(ν′) + CD3(0 v2 0 0)

Abstract

The title reaction was investigated under crossed-beam conditions at three different collision energies, E_c = 8.4, 2.76 and 1.46 kcal mol⁻¹. The combination of using a (2 + 1) resonance-enhanced multiphoton ionization for tagging state-specific CD₃ products and exploiting a time-sliced velocity imaging for ion detection allows us to reveal the coincident information of the two product pairs in a state-correlated manner. The pair-correlated results are reported for the two product vibrators— (v₂ = 0, v′), (v₂ = 1, v′), (v₂ = 2, v′) and (v₂ = 3, v′)—and the dynamics attributes we examined include product state distributions, energy disposals and angular distributions. Together with our earlier communications [J. Lin, J. Zhou, W. Shiu, and K. Liu, Science 2003, 300, 966, and J. Lin, J. Zhou, W. Shiu, and K. Liu, J. Chem. Phys. 2003, 119, 4997, ], a rather complete picture of the correlated dynamics of the title reaction emerges. One of the major findings, the anti-correlated excitations of the two product vibrators at all four energies of this study, can qualitatively be understood by kinematics arguments.